EP1954982A4 - Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device - Google Patents

Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device

Info

Publication number
EP1954982A4
EP1954982A4 EP06833900A EP06833900A EP1954982A4 EP 1954982 A4 EP1954982 A4 EP 1954982A4 EP 06833900 A EP06833900 A EP 06833900A EP 06833900 A EP06833900 A EP 06833900A EP 1954982 A4 EP1954982 A4 EP 1954982A4
Authority
EP
European Patent Office
Prior art keywords
guide member
source device
light source
light guide
planar light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06833900A
Other languages
German (de)
French (fr)
Other versions
EP1954982A1 (en
Inventor
Koji Tokita
Takeo Watanabe
Shuichi Naijo
Shuji Gomi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Publication of EP1954982A1 publication Critical patent/EP1954982A1/en
Publication of EP1954982A4 publication Critical patent/EP1954982A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H01L33/60—Reflective elements
EP06833900A 2005-11-30 2006-11-27 Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device Withdrawn EP1954982A4 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005345782 2005-11-30
US74819105P 2005-12-08 2005-12-08
JP2006080377 2006-03-23
US78912806P 2006-04-05 2006-04-05
PCT/JP2006/324130 WO2007064002A1 (en) 2005-11-30 2006-11-27 Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device

Publications (2)

Publication Number Publication Date
EP1954982A1 EP1954982A1 (en) 2008-08-13
EP1954982A4 true EP1954982A4 (en) 2011-11-30

Family

ID=38092334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06833900A Withdrawn EP1954982A4 (en) 2005-11-30 2006-11-27 Light guide member, planar light source device provided with the light guide member, and display apparatus using the planar light source device

Country Status (3)

Country Link
US (1) US8021033B2 (en)
EP (1) EP1954982A4 (en)
WO (1) WO2007064002A1 (en)

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DE102007010755A1 (en) * 2007-03-06 2008-10-30 Osram Opto Semiconductors Gmbh Arrangement with a semiconductor chip and a light guide layer
WO2009016950A1 (en) * 2007-07-27 2009-02-05 Sharp Kabushiki Kaisha Illuminating device, and liquid crystal display device
US8414173B2 (en) * 2007-07-27 2013-04-09 Sharp Kabushiki Kaisha Illumination device and display device
EP2151623B1 (en) * 2007-07-27 2013-09-11 Sharp Kabushiki Kaisha Lighting device, display device, and light guide plate
WO2009019627A2 (en) * 2007-08-03 2009-02-12 Koninklijke Philips Electronics N.V. Surface light illumination device with light power side emitting leds
CN101680637B (en) * 2007-08-07 2011-07-13 夏普株式会社 Lighting device and liquid crystal display
EP2241800A4 (en) * 2008-02-05 2011-01-26 Sharp Kk Illuminating device and liquid crystal display device
KR101021248B1 (en) * 2008-03-10 2011-03-11 닛뽕빅터 가부시키가이샤 Optical unit, back light device, liquid crystal module, and liquid crystal display
EP2258976A4 (en) * 2008-05-30 2014-01-15 Sharp Kk Illuminating device, display device and light guide plate
JP5213552B2 (en) * 2008-07-03 2013-06-19 本田技研工業株式会社 Vehicle meter
WO2010070885A1 (en) * 2008-12-15 2010-06-24 パナソニック株式会社 Sheet-shaped illuminating device and liquid crystal display device
KR20110104058A (en) * 2008-12-18 2011-09-21 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Light emitting device creating decorative light effects in a luminaire
JP2010231942A (en) * 2009-03-26 2010-10-14 Hitachi Ltd Liquid crystal display
US8698977B2 (en) 2009-04-17 2014-04-15 Sharp Kabushiki Kaisha Lighting device and display device
WO2010123284A2 (en) * 2009-04-21 2010-10-28 Lg Electronics Inc. Light emitting device
US20120127395A1 (en) * 2009-06-30 2012-05-24 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
JP5154695B2 (en) * 2009-06-30 2013-02-27 シャープ株式会社 Lighting device, display device, and television receiver
RU2500951C2 (en) * 2009-07-09 2013-12-10 Шарп Кабусики Кайся Lighting unit, display device and tv receiver
US9322973B2 (en) 2009-07-16 2016-04-26 Koninklijke Philips N.V. Lighting device with light sources positioned near the bottom surface of a waveguide
CN102483541B (en) * 2009-08-27 2016-01-06 Lg电子株式会社 Optical module, back light unit and display device thereof
USRE47656E1 (en) 2009-08-27 2019-10-22 Lg Electronics Inc. Optical assembly, backlight unit and display apparatus thereof
EP2470948A4 (en) * 2009-08-27 2013-06-26 Lg Electronics Inc Optical assembly, backlight unit, and display device
US7960194B2 (en) * 2009-10-07 2011-06-14 Bridgelux, Inc. Method for manufacturing a reflective surface sub-assembly for a light-emitting device
KR101604497B1 (en) * 2009-12-08 2016-03-17 엘지디스플레이 주식회사 Backlight unit and liquid crystal display device having the same
TWI420051B (en) * 2010-07-28 2013-12-21 Hon Hai Prec Ind Co Ltd Led surface illuminant device
KR101279471B1 (en) * 2010-11-22 2013-06-27 엘지이노텍 주식회사 Method for manufacturing Back Light Unit within Rasin or Optical pattern
JP5667888B2 (en) 2010-12-13 2015-02-12 日立マクセル株式会社 BACKLIGHT UNIT AND VIDEO DISPLAY DEVICE USING THE SAME
KR101287493B1 (en) * 2010-12-23 2013-07-18 엘지이노텍 주식회사 Back light umit within resin layer for light-guide and LCD using the same
WO2012138123A2 (en) 2011-04-04 2012-10-11 엘지이노텍 주식회사 Lighting apparatus
KR101949667B1 (en) 2012-04-05 2019-02-19 주식회사 쿠라레 Illumination device
KR20150105169A (en) * 2014-03-06 2015-09-16 교우세라 커넥터 프로덕츠 가부시키가이샤 Lighting apparatus
WO2017169123A1 (en) 2016-03-31 2017-10-05 ソニー株式会社 Light emitting device, display apparatus, and illumination apparatus
JP6766795B2 (en) 2017-06-30 2020-10-14 日亜化学工業株式会社 Light emitting module manufacturing method and light emitting module
CN107561724B (en) * 2017-11-01 2020-08-07 京东方科技集团股份有限公司 Stereoscopic display device and display apparatus
US11131883B2 (en) * 2018-06-22 2021-09-28 Minebea Mitsumi Inc. Planar lighting device
US11561338B2 (en) 2019-09-30 2023-01-24 Nichia Corporation Light-emitting module
WO2021218478A1 (en) * 2020-04-28 2021-11-04 海信视像科技股份有限公司 Display apparatus

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US20040218388A1 (en) * 2003-03-31 2004-11-04 Fujitsu Display Technologies Corporation Surface lighting device and liquid crystal display device using the same
US20050243243A1 (en) * 2004-04-23 2005-11-03 Nobuyuki Koganezawa Liquid crystal display device, display device and backlight device
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Also Published As

Publication number Publication date
EP1954982A1 (en) 2008-08-13
WO2007064002A1 (en) 2007-06-07
US20090129058A1 (en) 2009-05-21
US8021033B2 (en) 2011-09-20

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